Home / 18,983.10-28,474.65-5,132.10

Finding the Fourth Proportional to 18,983.10, 28,474.65 and 5,132.10

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Solution

The fourth proportional to 18,983.10, 28,474.65 and 5,132.10 is: 7,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.10 : 28,474.65 = 5,132.10 : x
  2. Step 2: Convert to fraction form
    18,983.10/28,474.65 = 5,132.10/x
  3. Step 3: Cross multiply
    18,983.10x = 28,474.65 × 5,132.10
  4. Step 4: Simplify right side
    18,983.10x = 146,134,751.27
  5. Step 5: Solve for x
    x = 146,134,751.27/18,983.10
  6. Step 6: Final answer
    x = 7,698.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.